Unlike previous trios, all three of the lake trio are of a single type, the Template:Type2, though like the others, they share an ability: Levitate. According to legend, when Arceus created the universe it created Uxie, Mesprit, and Azelf, and therefore is believed to be their master. According to one of Azelf's Pokédex entries, all three of them were born from the same egg.

It is interesting to note that each of the members of the lake trio has one of the qualities of the Abrahamic God: Uxie is omniscient, Mesprit is omnipresent, and Azelf is omnipotent. They could also be equated to, respectively, the Greek/Roman deities of Athena/Minerva, Poseidon/Neptune, and Zeus/Jupiter. It should also be noted that parts of their name come from fantasy creatures, pixies, sprites and elves, respectively. The other parts of their names come from pronouns: you (Uxie), me (Mesprit), and us (Azelf).

The members of the lake trio are tied for the lightest legendary Pokémon, and are second for the lightest of all Pokémon (after Gastly and Haunter).

The lake trio are the first set of legendary Pokémon since the legendary birds to have their names changed for the English language versions of the game - from Yuxie, Emrit, and Agnome to Uxie, Mesprit, and Azelf.